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Related Experiment Videos

Angiogenesis in abdominal aortic aneurysms

M M Thompson1, L Jones, A Nasim

  • 1Department of Surgery, University of Leicester, U.K.

European Journal of Vascular and Endovascular Surgery : the Official Journal of the European Society for Vascular Surgery
|May 1, 1996
PubMed
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Abdominal aortic aneurysms show increased neovascularization, or new blood vessel formation, linked to inflammation. This suggests anti-angiogenic therapies could be a future treatment for aortic aneurysms.

Area of Science:

  • Vascular biology
  • Pathology
  • Cardiovascular research

Background:

  • Abdominal aortic aneurysms (AAAs) are characterized by aortic wall remodeling.
  • The role of neovascularization and inflammation in AAA pathogenesis is not fully understood.

Purpose of the Study:

  • To quantify neovascularization in AAA walls compared to atherosclerotic aortas.
  • To correlate angiogenic response with inflammatory cell infiltration in AAAs.

Main Methods:

  • Histopathological analysis of aortic samples from AAA patients and atherosclerotic controls.
  • Staining techniques included H&E, EVG, and anti-endothelial cell antibody.
  • Quantification of new vessels and inflammatory cells in the media, adventitia, and transition zones.

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Main Results:

  • Significantly increased neovascularization was observed in all layers of AAA walls versus controls (p<0.001).
  • Neovascularization degree positively correlated with inflammatory infiltrate extent (rs=0.45, p<0.01).

Conclusions:

  • AAAs exhibit a significant angiogenic response directly related to the degree of aortic wall inflammation.
  • Anti-angiogenic agents may represent a potential therapeutic strategy for managing AAA disease.